The former "30 Rock" star already is the father of a 17-year-old daughter, Ireland, from his previous marriage to actress Kim Basinger

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In this July 22, 2013 file photo, actor Alec Baldwin and pregnant wife Hilaria attend the premiere of Sony Pictures Classics' "Blue Jasmine." Baldwin and his wife have given birth to a baby girl in New York.

Actor Alec Baldwin and his wife have given birth to a baby girl in New York.

Hilaria Baldwin tweeted the news from her verified Twitter account Friday night. She says that the family is overjoyed and that Carmen Gabriela "is absolutely perfect."